SSM Health Dean Medical Group
William Ranum, MD Emergency Medicine, Family Medicine in Waunakee, WI

SSM Health Dean Medical Group
1300 S. Century Ave. Waunakee, WI 53597
William Ranum is a board certified family medicine physician. He obtained his undergraduate degree from the University of Wisconsin-Madison and earned his medical degree from the University of Wisconsin School of Medicine and Public Health-Madison. He completed his internship and residency at the University of Wisconsin - SSM Health St. Mary's Hospital-Madison.
Ranum's practice is focused on continuity of care and obstetrical care. He provides low-risk prenatal care until 32 weeks - no deliveries.
Dr. Ranum is board certified by the American Board of Family Medicine.
Ranum's practice is focused on continuity of care and obstetrical care. He provides low-risk prenatal care until 32 weeks - no deliveries.
Dr. Ranum is board certified by the American Board of Family Medicine.
About Me
Specialties
Emergency Medicine
Family Medicine
Gender
Male
Education
UW Hospital Graduate Medical Education
Residency, 1990
UW Hospital Graduate Medical Education
Internship, 1988
University of Wisconsin School of Medicine and Public Health
Medical School, 1987
Hospital Affiliations
SSM Health St. Mary's Hospital - Madison
Certifications
Drug Enforcement Administration
Wisconsin Medical Examining Board
Medical Interests
Obstetrical care
Primary care
Reviews
Rating Breakdown
Reviews are measured on a scale of 1 to 5, with 5 being the best score.
Question Breakdown
4.9Overall Experience5.0Listened Carefully4.9Explained Things Clearly4.9Knew Medical History4.9Involved in Care Decisions5.0Showed Courtesy & Respect
Patient Reviews
SSM Health only displays patient satisfaction data for providers included in our survey process and who have a minimum of 30 returned surveys. The overall rating is an average of all responses to the survey questions listed below. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy. Learn more about our survey.
4.9 out of 5
169 ratings,
78 reviews
9/9/2026
Dr. Ranum is everything a physician should be. He is caring, knowledgeable, intuitive, thorough and provides exceptional care while never making appointments feel rushed. His experience, caring manner, expertise, kindness, humor and gift for connecting with people is truly special. After 35 years as my PCP there is no one I would trust more with my care. Being able to trust that my doctor has great understanding of my medical history and understands me as a person brings a level of comfort to medical care that is difficult to come by. Nothing but grateful for him.
9/9/2026
He is an exceptional physician.
9/9/2026
That is the best he knows everyone he knows everything about me and he knows what I can do and what I can’t and I am really gonna miss him when he retires
8/28/2026
I have been seeing Dr. Ranum for over 30 years and will miss him tremendously when he leaves. You will be losing a wonderful man.
8/27/2026
Attentive to details
Map & Directions
SSM Health Dean Medical Group
1300 S. Century Ave.Waunakee, WI 53597
Mon
8:00 am - 5:00 pm
Tue
8:00 am - 5:00 pm
Wed
8:00 am - 5:00 pm
Thu
8:00 am - 5:00 pm
Fri
8:00 am - 5:00 pm
Sat
Closed
Sun
Closed
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